Classes, traits, and interfaces - main - drupal

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Introduction to classes

A lot of the PHP code in Drupal is object oriented (OO), making use of PHP classes, interfaces, and traits. See the Objected-oriented programming conventions for more information.

See also

Objected-oriented programming conventions

File

core/core.api.php, line 1529

Name Deprecated Object type Namespace File name Summary Direct uses Use statements Strings
LanguageConfigurationElement class Drupal\language_elements_test\Form core/modules/language/tests/language_elements_test/src/Form/LanguageConfigurationElement.php A form containing a language configuration element. 1
LanguageConfigurationElementTest class Drupal\Tests\language\Functional core/modules/language/tests/src/Functional/LanguageConfigurationElementTest.php Tests the features of the language configuration element field.
LanguageConfigurationElementTest class Drupal\language_elements_test\Form core/modules/language/tests/language_elements_test/src/Form/LanguageConfigurationElementTest.php A form containing a language select element. 1
LanguageConfigurationTest class Drupal\Tests\language\Functional core/modules/language/tests/src/Functional/LanguageConfigurationTest.php Adds and configures languages to check negotiation changes.
LanguageContentSettings class Drupal\language\Plugin\migrate\source\d6 core/modules/language/src/Plugin/migrate/source/d6/LanguageContentSettings.php Drupal 6 i18n node settings from database. 1
LanguageContentSettings class Drupal\language\Plugin\migrate\source\d7 core/modules/language/src/Plugin/migrate/source/d7/LanguageContentSettings.php Drupal 7 i18n node settings from database. 1
LanguageContentSettingsTaxonomyVocabulary class Drupal\language\Plugin\migrate\source\d6 core/modules/language/src/Plugin/migrate/source/d6/LanguageContentSettingsTaxonomyVocabulary.php Drupal 6 i18n vocabularies source from database. 1
LanguageContentSettingsTaxonomyVocabulary class Drupal\language\Plugin\migrate\source\d7 core/modules/language/src/Plugin/migrate/source/d7/LanguageContentSettingsTaxonomyVocabulary.php Drupal 7 i18n vocabularies source from database. 1
LanguageContentSettingsTest class Drupal\Tests\language\Kernel\Plugin\migrate\source\d6 core/modules/language/tests/src/Kernel/Plugin/migrate/source/d6/LanguageContentSettingsTest.php Tests menu source plugin.
LanguageContentSettingsTest class Drupal\Tests\language\Kernel\Plugin\migrate\source\d7 core/modules/language/tests/src/Kernel/Plugin/migrate/source/d7/LanguageContentSettingsTest.php Tests menu source plugin.
LanguageContentTaxonomyVocabularySettingsTest class Drupal\Tests\language\Kernel\Plugin\migrate\source\d6 core/modules/language/tests/src/Kernel/Plugin/migrate/source/d6/LanguageContentTaxonomyVocabularySettingsTest.php Tests i18ntaxonomy vocabulary setting source plugin.
LanguageContentTaxonomyVocabularySettingsTest class Drupal\Tests\language\Kernel\Plugin\migrate\source\d7 core/modules/language/tests/src/Kernel/Plugin/migrate/source/d7/LanguageContentTaxonomyVocabularySettingsTest.php Tests i18ntaxonomy vocabulary setting source plugin.
LanguageConverter class Drupal\language\ProxyClass core/modules/language/src/ProxyClass/LanguageConverter.php Provides a proxy class for \Drupal\language\LanguageConverter.
LanguageConverter class Drupal\language core/modules/language/src/LanguageConverter.php Converts parameters for upcasting entity IDs to full objects. 2
LanguageCustomLanguageConfigurationTest class Drupal\Tests\language\Functional core/modules/language/tests/src/Functional/LanguageCustomLanguageConfigurationTest.php Adds and configures custom languages.
LanguageDefault class Drupal\Core\Language core/lib/Drupal/Core/Language/LanguageDefault.php Provides a simple get and set wrapper to the default language object. 10 2
LanguageDeleteForm class Drupal\language\Form core/modules/language/src/Form/LanguageDeleteForm.php Defines a confirmation form for deleting a language entity. 1
LanguageDependencyInjectionTest class Drupal\Tests\language\Kernel core/modules/language/tests/src/Kernel/LanguageDependencyInjectionTest.php Tests that a language object can be injected.
LanguageDomains

in drupal:11.3.0 and is removed from drupal:12.0.0. There is no replacement.

class Drupal\language\Plugin\migrate\process core/modules/language/src/Plugin/migrate/process/LanguageDomains.php This plugin makes sure that no domain is empty if domain negotiation is used. 1
LanguageDomainsTest class Drupal\Tests\language\Unit\process core/modules/language/tests/src/Unit/process/LanguageDomainsTest.php Tests Drupal\language\Plugin\migrate\process\LanguageDomains.
LanguageEditForm class Drupal\language\Form core/modules/language/src/Form/LanguageEditForm.php Controller for language edit forms. 1
LanguageEntityFieldAccessHookTest class Drupal\Tests\language\Functional core/modules/language/tests/src/Functional/LanguageEntityFieldAccessHookTest.php Tests language picker compatibility with hook_entity_field_access.
LanguageEntityFieldAccessTestHooks class Drupal\language_entity_field_access_test\Hook core/modules/language/tests/language_entity_field_access_test/src/Hook/LanguageEntityFieldAccessTestHooks.php Hook implementations for language_entity_field_access_test.
LanguageException class Drupal\language\Exception core/modules/language/src/Exception/LanguageException.php A base exception thrown in any language system operations. 1
LanguageFallbackTest class Drupal\Tests\language\Kernel core/modules/language/tests/src/Kernel/LanguageFallbackTest.php Tests the language fallback behavior.
LanguageField class Drupal\views\Plugin\views\field core/modules/views/src/Plugin/views/field/LanguageField.php Defines a field handler to translate a language into its readable form.
LanguageFilter class Drupal\views\Plugin\views\filter core/modules/views/src/Plugin/views/filter/LanguageFilter.php Provides filtering by language.
LanguageFormatter class Drupal\Core\Field\Plugin\Field\FieldFormatter core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/LanguageFormatter.php Plugin implementation of the 'language' formatter.
LanguageFormBase abstract class Drupal\language\Form core/modules/language/src/Form/LanguageFormBase.php Base form for language add and edit forms. 2
LanguageHooks class Drupal\language\Hook core/modules/language/src/Hook/LanguageHooks.php Hook implementations for language.
LanguageInterface interface Drupal\Core\Language core/lib/Drupal/Core/Language/LanguageInterface.php Defines an interface for languages. 2 246
LanguageItem class Drupal\Core\Field\Plugin\Field\FieldType core/lib/Drupal/Core/Field/Plugin/Field/FieldType/LanguageItem.php Defines the 'language' entity field item. 1 1
LanguageListBuilder class Drupal\language core/modules/language/src/LanguageListBuilder.php Defines a class to build a listing of language entities. 1
LanguageListModuleInstallTest class Drupal\Tests\language\Functional core/modules/language/tests/src/Functional/LanguageListModuleInstallTest.php Tests that the language list is not empty when language is installed.
LanguageListTest class Drupal\Tests\language\Functional core/modules/language/tests/src/Functional/LanguageListTest.php Adds a new language and tests changing its status and the default language.
LanguageLocaleListTest class Drupal\Tests\language\Functional core/modules/language/tests/src/Functional/LanguageLocaleListTest.php Adds a new language with translations and tests language list order.
LanguageLocalTasksTest class Drupal\Tests\language\Unit\Menu core/modules/language/tests/src/Unit/Menu/LanguageLocalTasksTest.php Tests existence of language local tasks.
LanguageManager class Drupal\Core\Language core/lib/Drupal/Core/Language/LanguageManager.php Class responsible for providing language support on language-unaware sites. 1 16 2
LanguageManagerInterface interface Drupal\Core\Language core/lib/Drupal/Core/Language/LanguageManagerInterface.php Common interface for the language manager service. 2 153
LanguageMapper class Drupal\ckeditor5 core/modules/ckeditor5/src/LanguageMapper.php Manages language mappings and discovery for ckeditor translations. 3
LanguageNegotiation class Drupal\language\Attribute core/modules/language/src/Attribute/LanguageNegotiation.php Defines a language negotiation attribute object. 12
LanguageNegotiation class Drupal\language\Annotation core/modules/language/src/Annotation/LanguageNegotiation.php Defines a language negotiation annotation object.
LanguageNegotiation

in drupal:11.3.0 and is removed from drupal:12.0.0. There is no replacement.

class Drupal\language\Plugin\migrate\process core/modules/language/src/Plugin/migrate/process/LanguageNegotiation.php Processes the arrays for the language types' negotiation methods and weights. 1
LanguageNegotiationBrowser class Drupal\language\Plugin\LanguageNegotiation core/modules/language/src/Plugin/LanguageNegotiation/LanguageNegotiationBrowser.php Class for identifying language from the browser Accept-language HTTP header. 1
LanguageNegotiationContentEntity class Drupal\language\Plugin\LanguageNegotiation core/modules/language/src/Plugin/LanguageNegotiation/LanguageNegotiationContentEntity.php Class for identifying the content translation language. 4
LanguageNegotiationContentEntityTest class Drupal\Tests\language\Unit\Plugin\LanguageNegotiation core/modules/language/tests/src/Unit/Plugin/LanguageNegotiation/LanguageNegotiationContentEntityTest.php Tests the LanguageNegotiationContentEntity plugin class.
LanguageNegotiationContentEntityTest class Drupal\Tests\language\Functional core/modules/language/tests/src/Functional/LanguageNegotiationContentEntityTest.php Tests language negotiation with the language negotiator content entity.
LanguageNegotiationFormOverrideTest class Drupal\Tests\config\Functional core/modules/config/tests/src/Functional/LanguageNegotiationFormOverrideTest.php Tests language-negotiation overrides are not on language-negotiation form.
LanguageNegotiationInfoTest class Drupal\Tests\language\Functional core/modules/language/tests/src/Functional/LanguageNegotiationInfoTest.php Tests alterations to language types/negotiation info.
LanguageNegotiationMethodBase abstract class Drupal\language core/modules/language/src/LanguageNegotiationMethodBase.php Base class for language negotiation methods. 10 10

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